baber/WOPTO huggingface dataset:
Patent CA-2220183-A1 (CA)
Inventor: KIRSCH AXEL
IPC: A61L31/14
Filed: 1996-06-04
Abstract: L'invention concerne un dispositif permettant de traiter une cavité osseuse (20) formée dans la zone de jonction (10) des deux branches d'une fourche dentaire, qui comprend un dispositif plan de recouvrement comportant une membrane de recouvrement (18) à action cellulo-occlusive et servant à recouvrir temporairement la cavité osseuse (20) vis-à-vis du tissu mou environnant, ledit dispositif pouvant être plié vers le haut en direction de l'extrémité distale de la dent, après son introduction entre les branches (12, 14) de la fourche. Après avoir été appliqué sur les deux surfaces dentaires sensiblement parallèles à la ligne de jonction des axes médians longitudinaux des deux branches, ledit dispositif peut être fixé à la dent (16), dans la zone d'interface (22) entre le cément (24) et l'émail (26) de la dent. Sur ses deux bords transversaux distaux correspondant à la zone d'interface (22) entre le cément (24) et l'émail (26) de la dent, le dispositif de recouvrement (18) comporte un élément auxiliaire de montage. Ce dispositif se caractérise en ce que l'auxiliaire de montage comporte un dispositif de fixation (28, 30, 34) qui permet de monter, par liaison de forme et/ou de force, le dispositif de recouvrement (18) sur la dent (16).
Patent CA-2221009-A1 (CA)
IPC: B23K26/02
Filed: 1997-11-13
Abstract: A joint in a pair of metal components is prepared by overlapping edges of the components and biasing the components against one another. The components are constrained in a common plane so that at least one of the edges is upturned. The edges are melted by a laser beam to allow the components to move in to alignment.
Patent CA-2221292-A1 (CA)
Inventor: XIAO XIAO
IPC: A61K48/00
Filed: 1996-05-14
Abstract: L'invention concerne un système de réplication et d'encapsidation de fragments d'ADN de recombinaison pour former des particules virales constituées de capsides de virus ayant les caractéristiques d'un adénovirus; dans ledit système on utilise un fragment à 165 paires de bases d'ADN contenant des séquences de répétitions terminales inverses dudit virus associé à l'adénovirus pour la manipulation des vecteurs d'expression utiles pour la thérapie génique. L'invention se rapporte aussi à un moyen permettant de produire des populations virales de recombinaison pouvant être utilisées pour traiter des patients souffrant de maladies génétiques.
Patent CA-2223245-A1 (CA)
Title: Catechol diethers derivatives useful as pharmaceutical agents
Inventor: DUPLANTIER ALLEN J
IPC: A61P43/00
Filed: 1995-06-07
Abstract: A compound of formula (I) wherein a, b, V, W, X, Y, Z, R1 and R2 are as defined above. The compound of formula (I) and the pharmaceutically acceptable salts thereof are useful in inhibiting phosphodiesterase (PDE) type IV and the production of tumor necrosis factor (TNF) and in the treatment of asthma, arthritis, bronchitis, chronic obstructive airways disease, psoriasis, allergic rhinitis, dermatitis and other inflammatory diseases characterized by phosphodiesterase (PDE) type IV activity as well as AIDS, sepsis, septic shock and other diseases, such as cachexia, involving the production of TNF.
Patent CA-2225068-A1 (CA)
Inventor: PETERS HANS-FRIEDRICH
IPC: B65H18/26
Filed: 1997-03-19
Abstract: Dans les bobineuses servant à produire des rouleaux bobinés (3), on connaît les systèmes de rouleaux presseurs qui présentent une traverse (8) horizontale à déplacement vertical, sur laquelle est fixée une rangée de segments de rouleau (9) tournant librement et déplaçables individuellement, fixés les uns à côté des autres, avec des axes parallèles à la traverse (8). Il est également prévu des éléments destinés à ajuster la pression de contact des segments de rouleau (9) sur les rouleaux presseurs (3). Selon l'invention, dans le support de chaque segment de rouleau (9), sur la traverse (8), est intégré un élément qui augmente la pression de contact lorsque l'écart entre le segment de rouleau (9) se réduit par rapport à la traverse, avec une force supplémentaire augmentant en fonction de l'écart, ou diminue la pression de contact lorsque l'écart augmente, avec une force antagoniste augmentant en fonction de l'écart. Ce système permet d'une part d'assurer une force de pression aussi uniforme que possible sur tous les rouleaux bobinés (3) et par ailleurs d'éviter l'émergence d'effets négatifs dus à de trop grandes différences de diamètre des rouleaux bobinés (3).
Patent CA-2225738-A1 (CA)
Inventor: SAZHIN SERGEY N
IPC: H01M10/05
Filed: 1997-12-22
Abstract: A process for purification of lithium battery electrolyte solutions is provided whereby the concentrations of trace amounts of impurities such as water in the electrolyte solutions can be reduced. Such electrolyte solutions generally include at least one lithium salt solute contained in at least one organic solvent. Lithium and a second metal with which lithium is capable of intercalating are first placed in electrical contact with one another and then placed in the electrolyte solution. Preferably, aluminum is used as the second metal and the two metals are provided as separate layers that are pressed together in a rolling mill to form a bimetallic sheet. The solution containing the bimetallic sheet is agitated to encourage the reactions which reduce the levels of impurities such as water in the electrolyte solution. The resulting purified solution is then filtered to remove any remaining metal or reaction products. The resulting purified electrolyte solution can be used to make lithium batteries having improved cycling characteristics over batteries using unpurified electrolyte solution.
Patent CA-2227498-A1 (CA)
Title: Sound processing circuit
Inventor: SUZUKI TATSUYA
IPC: H04S5/02
Filed: 1998-01-20
Abstract: A sound processing circuit for distributing low frequency signal components of multichannel audio signals. The sound processing circuit filters low frequency signal components from the digital audio signals of m (m <= n) specified channels using an exclusive channel having low frequency signals and n (n > 1) multiple independent channels, and outputs the filtered low frequency signal components as part of a low frequency signal channel. The sound processor circuit cornprises m high-pass filters to receive digital audio signals from m of specified channels, and allows the signal components having a frequency higher than a cut-off frequency fc to pass; m first coefficient multipliers receive the digital audio signals of the m of specified channels and multiply the signals by a multiplication coefficient ai (0 < ai < 1); a second coefficient multiplier receives the digital audio signal of the exclusive channel, and multiplies the signal by a multiplication coefficient aL (0 < aL < 1); an adder for adding each output of the m first coefficient multipliers and the output of the second coefficient multiplier to produce a synthetic audio signal; and a low pass filter which receives the synthetic audio signal from the adder, and allows the signal components having a frequency lower than the cut-off frequency fc to pass.
Patent CA-2228193-A1 (CA)
Title: Fuel injector valve for liquified fuel
Inventor: ROCHE RONALD H
IPC: F02M69/46
Filed: 1998-01-29
Abstract: A solenoid actuated fuel injector for liquified petroleum gas (LPG), compressed natural gas (CNG) or the like has a fuel passage therethrough and a valve to control the flow of fuel through the fuel passage. The valve has a valve head formed of a generally flexible and substantially resilient material engageable with a valve seat to prevent fuel flow through the injector. The valve is preferably spring biased to a closed position which compresses the valve head against the valve seat to prevent fuel flow between them. Compression of the valve head is preferably limited by contact between the metal valve body and the metal valve seat which limits the travel of the valve body relative to the valve seat. The valve head and valve seat are also constructed to be highly resistant to wear to provide a consistent seal between them. The valve head preferably engages the valve seat over a limited surface area to facilitate disengaging the valve head from the valve seat so that the force provided by the solenoid will be sufficient to accurately move the valve to its open and closed positions.
Patent CA-2228898-A1 (CA)
Inventor: YAMANE TETSURO
IPC: A61K31/4704
Filed: 1996-08-20
Abstract: The present invention provides an agent for inhibiting carcinogenesis which comprises, as the active ingredient, a carbostyril derivative represented by general formula (I), (wherein R is a halogen atom) or a salt thereof.
Patent CA-2230067-A1 (CA)
Title: Exterior insulating finish panel system
Inventor: SANTAROSSA NED
IPC: E04F13/04
Filed: 1998-02-20
Abstract: A method of cladding a building wall surface is described with individual prefabricated panels and trim mouldings with any fasteners and joints between the panels and trim being covered on site with a coating of stucco to produce a flush finished stucco surface. Each panel has a uniform transverse cross-sectional profile, and a core of foam material coated with a weatherproof stucco coating on its exterior surface.  Tongue and groove joints are disposed along the longitudinal surfaces and a longitudinal recess in the exterior surface adjacent each tongue and groove joint is adapted to receive a layer of joint coating to fill the recess and cover the longitudinal joints flush with the external surface. The wall surface is installed by cutting the elongate cladding panels to the approximate length of the wall and mounting the cladding panels temporarily to the wall substrate, such as plywood for example. The exterior surface of the panels is aligned to a predetermined outside finish datum and fasteners secure the cladding panels to the substrate without creating a thermally conductive bridge between the substrate and the external ambient atmosphere. The openings around doors and windows, vertical corners and other details are finished by cutting, mounting and affixing elongate transverse end trim mouldings to cover the end surfaces of the cladding panels. Installation is completed by applying a joint coating to cover the joints and filling the adjacent recesses flush with the exterior surface of the panels, then applying a final finish coat to the entire wall assembly.
Patent CA-2230090-A1 (CA)
Inventor: KUMAR VINOD
IPC: H04W16/00
Filed: 1998-03-12
Abstract: The invention concerns a process for the configuration of numerous geographic cells linked to a single broadcast/reception site in a digital cellular radiocommunication system.  The site receives numerous base stations, each of which is associated with one of the cells and each of which is defined by a separate BCCH carrier.  The site is located in a zone that can be broken down into an inner corona, presenting a primary traffic density, and at the centre of which is the broadcast/reception site, and an outer corona, presenting a secondary traffic density inferior to that of the first, and surrounding the inner corona.  According to the invention, outer corona traffic is supported by at least two primary base stations (BTS 1 to BTS 4), each of which is associated with a sectorized cell.  Each primary base station comprises an antenna (A1 to A4), directional and long-range, connected directly to a single primary broadcast/reception device (TRx 1 to TRx 4), the first broadcast/reception device comprising a transmitter (Tx 1 to Tx 4) using the BCCH carrier (fBCCH,1 to fBCCH,4) specific to the first base station.  The invention also concerns the broadcast/reception site as such, with the various means it comprises.
Patent CA-2231238-A1 (CA)
Title: A device for the suspended transport of containers possessing protruding collars
Inventor: PRIERO MARCO
IPC: B65B43/46
Filed: 1995-09-05
Abstract: The device belongs to the category of transporting devices and refers to a transporter for containers possessing protruding collars and moved by means of suspension from the neck in which pulling elements (7) are connected with driving elements (3) in such a way that the active marginal extremity (7a) of the said pulling elements on which the protruding collars (6) of the container (5) rests in order to be pulled along, whose motion describes a path which is substantially identical even in curved sections, to that described by the driving elements (3), having substantially the same curvature and moving through a movement plain (9) different from that of the driving elements (3).
Patent CA-2232281-A1 (CA)
Title: Connector for the connection of a card with integrated circuit(s), and unit equipped with a connector of this type
Inventor: BRICAUD HERVE
IPC: H01R12/72
Filed: 1997-04-07
Abstract: The invention proposes a connector (64) for connecting a contact card (C) with integrated circuit(s) to a unit which includes a support (66) made of insulating material, characterized in that it includes a device (172) which is intended for holding the card in the position in which it is inserted into the connector and includes a lip (174) which includes a rear cut-out whose profile is complementary to that of the front transverse edge (99) of the card, and in that, in order to extract the card, irrespective of whether the extraction mode is manual or automatic, it is necessary to unlock it by acting on the lip (174) in order to move the lip vertically so as to release the card.
Patent CA-2233764-A1 (CA)
Inventor: GRENIER GILLES
IPC: E04F11/02
Filed: 1998-05-27
Abstract: L'invention concerne un procédé de fabrication d'escalier novateur. Ce nouveau type d'escalier permet l'utilisation de très minces sections de bois, il en découle donc une très importante économie de bois. L'apport d'un matériau rigide dessous l'escalier, tel que (et de façon non limitative) le fibre de verre renforce la structure de l'escalier. L'utilisation combinée du bois et d'un matériau de type composite permet de diminuer de façon substantielle le poids d'un escalier pré-assemblé en usine. Cette dernière caractéristique facilite considérablement le transport ainsi que la pose d'escaliers préfabriqués. De plus, le matériau de type composite giclé (ou appliqué) donne à un escalier un caractère monocoque, ce qui a pour effet d'éviter les craquements. Le couche giclée (ou appliquée) permet également de bloquer le passage de l'humidité du dessous vers le dessus.
Patent CA-2234040-A1 (CA)
Inventor: WALTHER ULI
IPC: F16B25/04
Filed: 1998-04-03
Abstract: The thread of a screw for use in fibrous material such as wood has V-shaped notches provided at the outer edge of selected thread portion. The cutouts are preferably arranged in pairs closely adjacent to each other so that each cutout has the general configuration of the letter W. The cutouts do not penetrate the whole thickness of the thread. There are about three cutouts at each turn of the thread at a central length of the threaded stem of the screw.  The cutouts facilitate the penetration of the screw into the material, at the same time reducing or preventing the loosening tendency or reducing the overall strength of the threaded portion, as would be the case in previously used thread cuts used in concrete screws.
Patent CA-2235848-A1 (CA)
Inventor: VERHEUL ERIC R
IPC: H04L9/08
Filed: 1998-04-24
Abstract: The invention relates to a method for key recovery cryptography to be used in a system consisting of: - two conversation partners who exchange secret information in encrypted form with each other by way of the public telecommunications infrastructure; - one or more legitimate co-listeners possibly present (for example,a government agency, or an employer of the conversation partners), who do have the enciphered information at their disposal, but are not able to decipher it; - one or more trusted parties (known as Trusted Recovery Parties - TRPs) in principle different from the conversation partners, who act as virtual conversation partners, who can decipher the information, but do not have the enciphered information at their disposal; - one or more monitors possibly present for monitoring the exchange between the conversation partners (for example, one of the conversation partners, a PTT or an employer of the conversation partners), in which the conversation partners as part of the exchange also make the same secret information available to the abovementioned co-listener if the latter acquires cooperation (simultaneously, or with some delay) from one of the TRPs (or several in the event of splitting or sharing techniques being used), in the process the conversation partners also send additional information at the same time, known as binding data, by means of which the monitor can check that said making of information available can also be carried out properly, without the monitor having to have at his disposal secret information. Characteristic of themethod is that it relates to an exchange in which the secret information is encrypted with the asymmetrical systems RSA, Rabin or Diffie-Hellman or a combination thereof.
Patent CA-2242368-A1 (CA)
Title: Switching control arrangement for multilevel convertor
Inventor: AINSWORTH JOHN DESMOND
IPC: H02J3/18
Filed: 1998-07-06
Abstract: A switching control arrangement for a multilevel convertor minimises the harmonic content of the convertor voltage or current by an open-loop and/or a closed- loop control of the timing of the switching of the GTOs associated with the energy-storage components (e.g. capacitors) in the convertor. In a first open-loop arrangement the convertor current is quantized over its working range and different threshold values are provided in dependence on the quantization values of the current. In a second open-loop arrangement a continuous, non-quantized control is provided based on at least a quadratic approximation to the desired current-dependent behaviour of the GTO switching angles. In a third, closed- loop arrangement, different GTO-switching threshold levels are provided as controlled by a Fourier integration process involving the nulling of those harmonics desired to be nulled. The control arrangement is applicable to chain or stacked-capacitor multilevel convertors and can be employed in SVC applications or applications in which the convertor draws real power as well as reactive power.
Patent CA-2242879-A1 (CA)
Title: Method for treating sexual dysfunctions
Inventor: GRANGER RICHARD H
IPC: A61K31/00
Filed: 1997-01-28
Abstract: This invention is a novel treatment for sexual dysfunctions by administering to a subject exhibiting a sexual dysfunction compounds that upmodulate the AMPA receptor. Methods and compositions for treating sexual dysfunction are provided. Kits containing the compositions in appropriate form for administration are also provided.
Patent CA-2243671-A1 (CA)
Title: Method for manufacturing airtight and moisture-proof cardboard boxes
Inventor: SPRONK-DIK ANNA
IPC: B65D5/28
Filed: 1997-01-20
Abstract: A method for manufacturing an airtight box from cardboard with sidewall panels and end wall panels, wherein after the blank has been cut out, a flexible material strip is connected at least substantially completely with the sidewall panels and a number of end wall panels through adhesion, which material strip is attached to each of a number of other end wall panels while leaving clear two triangular portions not provided with adhesive, located adjacent the free edges of the corresponding end panel, wherein thereafter the blank is erected to form the box through folding and adhesion, with the adhesive being applied to the blank by means of at least one stamp, the stamp being of such design that the adhesive layer on the relevant end wall panel terminates at some distance from the edge of the adjacent end wall panel. The invention also relates to a box obtained by the method according to the invention.
Patent CA-2243706-A1 (CA)
Title: Azolyl piperazinyl phenyl oxazolidinone antimicrobials
Inventor: SMITH HERMAN W
IPC: C07D263/24
Filed: 1997-02-18
Abstract: Compounds useful in the preparation of pharmaceutical preparations for the treatment of microbial infection where such compounds are of structural formula (I) or pharmaceutically acceptable salts thereof wherein: R1 is -CHO, -COCH3, -COCHCl2, -COCHF2, -CO2CH3, -SO2CH3, or -COCH2OH; X1 and X2 are independently H, F, or Cl; and Q is a five-membered ring heterocycle (azolyl ring) of general form (a) wherein A, B, and C, are independently oxygen (O), nitrogen (N), sulfur (S) or carbon (C). In all cases, the piperazine nitrogen atom is attached at the carbon atom of the carbon-nitrogen double bond.
Patent CA-2244473-A1 (CA)
Title: Spectrophotometric analysis
Inventor: HAMMOND STEPHEN VICTOR
IPC: G01N21/35
Filed: 1998-08-06
Abstract: A method of and apparatus for spectrophotometrically analysing  a tablet  by  NIR  transmission  measurements includes a tablet holder 1 having a recess 5 within which a tablet 20 is located.     A probe 40 is applied to the tablet 20 to direct an NIR beam 45 to and through the tablet for sensing at a detector 32 from which measurements characteristics of the tablet are analysed.   The recess 5 accommodates  the  tablet  20  as  a  close,   possibly complementary fit.   The tablet is clamped in the recess 5 by a spring loaded rod 8 to ensure that the tablet is located and retained at a predetermined position in the recess  5  relative to an aperture 7  through which the transmitted  beam  is  directed  to  the  detector  32. Preferably the tablet 20 is subjected to clamping forces applied  by  two  spring  loaded  clamping  rods  disposed substantially perpendicularly relative to each other in the tablet holder.     The effect of clamping the tablet in the tablet holder permits reproducible analysis measurements to be achieved from which may be determined the acceptability or  otherwise  of  the  characteristics  of  tablets  as manufactured commercially.    The invention also provides for the structure of a tablet holder.
Patent CA-2245691-A1 (CA)
Title: Dispositif d'eclairage a groupement de fibres entaillees
Inventor: APPELDORN ROGER H
IPC: G02B6/28
Filed: 1996-02-05
Abstract: L'invention concerne une fibre optique avec un coeur. On forme dans la fibre une entaille ayant un premier et un second côté, et s'étendant jusque dans le coeur. Au moins la partie de l'intérieur de l'entaille adjacente au premier côté a un indice de réfraction inférieur à celui du coeur. La lumière qui se déplace en formant un premier angle par rapport à l'axe de la fibre et qui frappe le premier côté sera totalement réfléchie à l'intérieur si le premier angle est supérieur à un angle prédéterminé. Si le premier angle est inférieur à l'angle prédéterminé, une partie de la lumière va pénétrer dans l'entaille et ressortir par la seconde surface, en formant par rapport à la première surface un second angle supérieur au premier.
Patent CA-2247890-A1 (CA)
Title: Hybrid analog/digital method and apparatus for controlling the transmission power level of a radio transceiver
Inventor: MALKEMES ROBERT CONRAD
IPC: H03G3/30
Filed: 1996-05-01
Abstract: A technique for controlling the transmission power level of a transmitter, particularly in a wireless personal communication system, is disclosed. This technique assists in the prevention of interference between transceivers from degrading the quality of transmission. Transmission power level (170-172) is controlled through a hybrid circuit containing both digital and analog electronics. The transmission power level is set by controlling both the amount by which a data stream is compressed and the gain of an analog transmit power amplifier (160). This approach allows adequate control over the transmission power level; it avoids the need for utilizing excessively wide data paths for the digital transmit signal (which may compromise portable terminal battery consumption), or utilizing expensive, hard-to-calibrate analog electronics.